The duo has dated off and on since 2015, and they certainly appear to be back on track: They were photographed arm-in-arm in New York City on Saturday night while celebrating the former One Direction singer's 27th birthday at il Buco restaurant.
The birthday dinner was a family affair for the Hadid clan: Gigi's sister, Bella Hadid, and mother, Yolanda Hadid, reportedly attended, and Dua Lipa — who's dating the girls' brother, Anwar Hadid — was also on hand.
It's probably not a shock that Gigi and Zayn ended up back together, as this is believed to be their fourth go-round at a romance.
The duo first split in March 2018 after more than two years together, but friends said they were likely to reconcile, which they did a month later. They reported split again in early 2019 but were reportedly back on by March 2019. The romance fizzled out again, though.
Gigi sparked the latest round of reconciliation rumors in December when she posted on Instagram about cooking with Zayn's mom's recipe. His mother then shared Gigi's post on her own Instagram Story.
Prior to the rekindling, Gigi briefly dated "The Bachelorette" runner-up Tyler Cameron in the fall of 2019.